Example usage for java.lang Character isValidCodePoint

Introduction

In this page you can find the example usage for java.lang Character isValidCodePoint.

Prototype

public static boolean isValidCodePoint(int codePoint) 

Source Link

Document

Determines whether the specified code point is a valid <a href="http://www.unicode.org/glossary/#code_point"> Unicode code point value</a>.

Usage

From source file:Main.java

public static void main(String[] args) {
    int cp1 = 0x0123, cp2 = 0x123fff;

    boolean b1 = Character.isValidCodePoint(cp1);
    boolean b2 = Character.isValidCodePoint(cp2);

    System.out.println(b1);//from  w  w  w.  ja v  a2  s.com
    System.out.println(b2);
}

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From source file:Strings.java

/**
 * Returns {@code true} if the specified character sequence is a
 * valid sequence of UTF-16 {@code char} values.  A sequence is
 * legal if each high surrogate {@code char} value is followed by
 * a low surrogate value (as defined by {@link
 * Character#isHighSurrogate(char)} and {@link
 * Character#isLowSurrogate(char)}).//  w w  w  .j a v  a  2  s  . c  o m
 *
 * <p>This method does <b>not</b> check to see if the sequence of
 * code points defined by the UTF-16 consists only of code points
 * defined in the latest Unicode standard.  The method only tests
 * the validity of the UTF-16 encoding sequence.
 * 
 * @param cs Character sequence to test.
 * @return {@code true} if the sequence of characters is
 * legal in UTF-16.
 */
public static boolean isLegalUtf16(CharSequence cs) {
    for (int i = 0; i < cs.length(); ++i) {
        char high = cs.charAt(i);
        if (Character.isLowSurrogate(high))
            return false;
        if (!Character.isHighSurrogate(high))
            continue;
        ++i;
        if (i >= cs.length())
            return false;
        char low = cs.charAt(i);
        if (!Character.isLowSurrogate(low))
            return false;
        int codePoint = Character.toCodePoint(high, low);
        if (!Character.isValidCodePoint(codePoint))
            return false;
    }
    return true;
}

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From source file:com.legstar.c2ws.servlet.C2wsProxy.java

/**
 * Produce a dump-like report of a data buffer content.
 * @param requestID a correlation id//from   w  ww .ja v  a 2 s  .  c o m
 * @param data the raw data to trace
 * @param log where to log
 */
public static void traceData(final String requestID, final byte[] data, final Log log) {

    StringBuilder dumpLine = new StringBuilder(); // 128
    String dumpChar; //[5];
    StringBuilder dumpString = new StringBuilder(); //[17];

    for (int i = 0; i < data.length && i < MAX_TRACES_BYTES; i++) {
        /* print every 16 byte on a different line */
        dumpChar = String.format("%02X ", data[i] & 0xff);
        dumpLine.append(dumpChar);
        if (Character.isValidCodePoint(data[i])) {
            dumpChar = String.format("%c", data[i]);
        } else {
            dumpChar = "?";
        }
        if (dumpChar.length() > 0) {
            dumpString.append(dumpChar);
        } else {
            dumpString.append(" ");
        }
        if (i % 16 == 15 || i == data.length - 1) {
            while (i % 16 < 15) {
                dumpLine.append("   ");
                i++;
            }
            dumpLine.append(" -- ");
            dumpLine.append(dumpString);
            log.debug(dumpLine);
            dumpString = new StringBuilder();
            dumpLine = new StringBuilder();
        }
    }

    if (data.length > MAX_TRACES_BYTES) {
        dumpLine.append(String.format("...data was truncated at %d bytes", MAX_TRACES_BYTES));
        log.debug(dumpLine);
    }
}

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From source file:CodePointInputMethod.java

private void finishComposition() {
    int len = buffer.length();
    if (len == 6 && format != SPECIAL_ESCAPE) {
        char codePoint = (char) getCodePoint(buffer, 2, 5);
        if (Character.isValidCodePoint(codePoint) && codePoint != 0xFFFF) {
            buffer.setLength(0);/*from   w ww .  j  a  v a 2 s. co m*/
            buffer.append(codePoint);
            sendCommittedText();
            return;
        }
    } else if (len == 8 && format == SPECIAL_ESCAPE) {
        int codePoint = getCodePoint(buffer, 2, 7);
        if (Character.isValidCodePoint(codePoint) && codePoint != 0xFFFF) {
            buffer.setLength(0);
            buffer.appendCodePoint(codePoint);
            sendCommittedText();
            return;
        }
    } else if (len == 12 && format == SURROGATE_PAIR) {
        char[] codePoint = { (char) getCodePoint(buffer, 2, 5), (char) getCodePoint(buffer, 8, 11) };
        if (Character.isHighSurrogate(codePoint[0]) && Character.isLowSurrogate(codePoint[1])) {
            buffer.setLength(0);
            buffer.append(codePoint);
            sendCommittedText();
            return;
        }
    }

    beep();
}

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From source file:com.continuent.tungsten.common.mysql.MySQLPacket.java

@Override
public String toString() {
    StringBuffer sb = new StringBuffer("Packet #").append(this.getPacketNumber());
    sb.append(" size=").append(this.getDataLength());
    sb.append(" pos=").append(this.getPacketPosition());
    sb.append(" data=");
    if (getDataLength() < 1024) {
        sb.append(Utils.byteArrayToHexString(byteBuffer));
        sb.append(" text data=");
        for (int i = 0; i < this.byteBuffer.length; i++) {
            if (this.byteBuffer[i] != 0)
                sb.append((char) this.byteBuffer[i]);
            else//from  www  .  j  av a 2 s. com
                sb.append(' ');
            sb.append(" ");
        }
    } else {
        for (int i = 0; i < 1024; i++) {
            sb.append(Utils.byteToHexString(this.byteBuffer[i]));
            sb.append(' '); // separate bytes with a space
        }
        sb.append(" ... - text data=");
        for (int i = 0; i < 1024; i++) {
            if (Character.isValidCodePoint(this.byteBuffer[i])) {
                sb.append((char) this.byteBuffer[i]);
                sb.append(' ');
            }
        }
        sb.append("... [data above 1Kb not displayed]");
    }

    return sb.toString();
}

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From source file:net.sourceforge.msscodefactory.cflib.v1_11.CFLib.CFLibXmlUtil.java

public static String formatXmlString(String str) {
    final String S_ProcName = "formatXmlString";
    if (str == null) {
        throw CFLib.getDefaultExceptionFactory().newNullArgumentException(CFLibXmlUtil.class, S_ProcName, 1,
                "str");
    }/*from w  w  w.j  a  v a  2 s.  co m*/
    StringBuffer buff = new StringBuffer();
    char ch;
    int idx;
    int len = str.length();
    for (idx = 0; idx < len; idx++) {
        ch = str.charAt(idx);
        if (Character.isWhitespace(ch)) {
            buff.append(ch);
        } else {
            switch (ch) {
            case '0':
            case '1':
            case '2':
            case '3':
            case '4':
            case '5':
            case '6':
            case '7':
            case '8':
            case '9':
            case 'a':
            case 'b':
            case 'c':
            case 'd':
            case 'e':
            case 'f':
            case 'g':
            case 'h':
            case 'i':
            case 'j':
            case 'k':
            case 'l':
            case 'm':
            case 'n':
            case 'o':
            case 'p':
            case 'q':
            case 'r':
            case 's':
            case 't':
            case 'u':
            case 'v':
            case 'w':
            case 'x':
            case 'y':
            case 'z':
            case 'A':
            case 'B':
            case 'C':
            case 'D':
            case 'E':
            case 'F':
            case 'G':
            case 'H':
            case 'I':
            case 'J':
            case 'K':
            case 'L':
            case 'M':
            case 'N':
            case 'O':
            case 'P':
            case 'Q':
            case 'R':
            case 'S':
            case 'T':
            case 'U':
            case 'V':
            case 'W':
            case 'X':
            case 'Y':
            case 'Z':
            case '~':
            case '!':
            case '#':
            case '$':
            case '%':
            case '^':
            case '*':
            case '(':
            case ')':
            case '-':
            case '_':
            case '+':
            case '=':
            case '{':
            case '}':
            case '[':
            case ']':
            case ':':
            case ';':
            case ',':
            case '.':
            case '?':
            case '/':
            case '\\':
            case '|':
                buff.append(ch);
                break;
            case '\'':
                buff.append("&apos;");
                break;
            case '"':
                buff.append("&quot;");
                break;
            case '&':
                buff.append("&amp;");
                break;
            case '<':
                buff.append("&lt;");
                break;
            case '>':
                buff.append("&gt;");
                break;
            default:
                if (!Character.isValidCodePoint(ch)) {
                    throw CFLib.getDefaultExceptionFactory().newArgumentRangeException(CFLibXmlUtil.class,
                            S_ProcName, "Only valid code points can be formatted, ch is out of range");
                }
                StringBuffer fmtbuff = new StringBuffer();
                fmtbuff.append("&#");
                Formatter fmt = new Formatter(fmtbuff);
                fmt.format("%1$d", ch);
                fmtbuff.append(";");
                String tmp = fmtbuff.toString();
                buff.append(tmp);
                fmt.close();
                break;
            }
        }
    }
    String retval = buff.toString();
    return (retval);
}

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From source file:org.archive.io.warc.WARCWriter.java

protected void baseCharacterCheck(final char c, final String parameter) throws IllegalArgumentException {
    // TODO: Too strict?  UNICODE control characters?
    if (Character.isISOControl(c) || !Character.isValidCodePoint(c)) {
        throw new IllegalArgumentException(
                "Contains illegal character 0x" + Integer.toHexString(c) + ": " + parameter);
    }/*from ww w  . j a v a2  s.c om*/
}

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From source file:org.codelibs.fess.crawler.util.UnsafeStringBuilder.java

public StrBuilder appendCodePoint(int codePoint) {
    if (Character.isBmpCodePoint(codePoint)) {
        append((char) codePoint);
    } else if (Character.isValidCodePoint(codePoint)) {
        append(Character.highSurrogate(codePoint));
        append(Character.lowSurrogate(codePoint));
    } else {/*from  ww w  . jav a 2s .c om*/
        throw new IllegalArgumentException();
    }
    return this;
}

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From source file:org.eclipse.rdf4j.rio.turtle.TurtleParser.java

/**
 * Appends the characters from codepoint into the string builder. This is
 * the same as Character#toChars but prevents the additional char array
 * garbage for BMP codepoints.//ww w . ja  va 2s  .c om
 * 
 * @param dst
 *            the destination in which to append the characters
 * @param codePoint
 *            the codepoint to be appended
 */
private static void appendCodepoint(StringBuilder dst, int codePoint) {
    if (Character.isBmpCodePoint(codePoint)) {
        dst.append((char) codePoint);
    } else if (Character.isValidCodePoint(codePoint)) {
        dst.append(Character.highSurrogate(codePoint));
        dst.append(Character.lowSurrogate(codePoint));
    } else {
        throw new IllegalArgumentException("Invalid codepoint " + codePoint);
    }
}

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From source file:org.rascalmpl.library.Prelude.java

public IBool isValidCharacter(IInteger i) {
    return values.bool(Character.isValidCodePoint(i.intValue()));
}

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